Hand warmer



FIG. 1 is a front, left and top perspective view of a hand warmer, showing my design.

FIG. 2 is a rear, right and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is another front, left and top perspective view of the hand warmer, showing another state when in use.

The broken lines depict portions of the hand warmer that form no part of the claimed design. 

CLAIM The ornamental design for a hand warmer, as shown and described. 